Invoicing, GST & Billing

Used Car Invoice Format: GST vs Non-GST (Free Template)

By Bill My Car · Updated 18 June 2026 · 3 min read

If you sell pre-owned cars, the invoice is the one document you create on every single deal. Get the format right and the rest of the paperwork, Form 29, Form 30, the sale letter, flows from it. Get it wrong and you invite disputes, RTO delays and tax headaches.

This guide covers the correct used car invoice format for Indian dealers: the two types of bill (GST and non-GST), the exact fields each one needs, and a template you can copy.

The GST invoice format. Sign in to BillMyCar.in and generate yours, auto-filled, in seconds.

The non-GST invoice format. Sign in to BillMyCar.in and generate yours, auto-filled, in seconds.

The two kinds of used-car invoice

There are two formats, and which one you use depends on whether you are GST-registered:

Most registered used-car dealers bill under the GST margin scheme, where tax applies only to your profit margin, not the full car value. We explain that in detail in our GST on used cars guide and the margin scheme breakdown.

Fields every used-car invoice must have

Whether GST or non-GST, a clean invoice includes:

Seller (dealer) details

• Dealership name, address, phone
• GSTIN (for GST invoices) and PAN

Buyer details

• Full name and address
• Phone number
• ID reference (Aadhaar / PAN), optional but recommended

Vehicle details

• Registration number
• Make, model and variant
• Year of manufacture
• Chassis number and engine number
• Colour and kilometres driven

Sale details

• Invoice number and date
• Sale price (and, for GST, the taxable margin + CGST/SGST)
• Payment received / balance
• Signature of dealer and buyer

The vehicle's chassis and engine numbers matter more than people think, they carry straight into Form 29 and Form 30 for the RTO transfer. Capture them once on the invoice and you never retype them.

GST invoice format (margin scheme)

A margin-scheme tax invoice shows the tax on your margin only:

Sale price (agreed)          ₹ 5,20,000
Purchase price               ₹ 5,00,000
Margin (taxable value)       ₹   20,000
CGST @ 9%                     ₹    1,800
SGST @ 9%                     ₹    1,800
Total payable                ₹ 5,23,600

Note: GST rates and applicability change over time and can vary by vehicle category. Always confirm the current rate for your case.

Non-GST sale invoice format

Simpler, no tax rows, just the agreed amount:

Vehicle (reg, make/model)    MH12AB1234, Honda City 2019
Agreed sale price            ₹ 5,20,000
Advance received             ₹   50,000
Balance on delivery          ₹ 4,70,000

Free template, what to copy

Use this skeleton for either format:

1. Header: dealership name, address, GSTIN/PAN, logo
2. Invoice no. + date
3. Bill to: buyer name, address, phone
4. Vehicle block: reg no, make/model/variant, year, chassis, engine, KM
5. Amount block: price (+ margin and CGST/SGST if GST)
6. Payment: received / balance
7. Signatures: dealer + buyer

Common mistakes to avoid

• Missing chassis/engine numbers, you'll need them again for Form 29/30, so capture them now.
• No invoice number sequence, makes your books impossible to audit.
• Charging GST on the full price instead of the margin (for margin-scheme dealers).
• No buyer signature, weakens the document if a dispute arises.
• Hand-writing every bill, slow, error-prone, and the details don't carry into your other forms.

Do it in one step instead

Typing the same buyer and vehicle details onto an invoice, then again onto a sale letter, then again onto Form 29 and Form 30 is where dealers lose hours every week. Capture the deal once and let the documents generate themselves.